package com.nowcoder.controller.advice;


import com.nowcoder.utils.CommunityUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@ControllerAdvice(annotations = Controller.class)
public class ExceptionAdvice {
    private static final Logger logger = LoggerFactory.getLogger(ExceptionAdvice.class);

    @ExceptionHandler({Exception.class})
    public void handleException(Exception e, HttpServletRequest request, HttpServletResponse response) throws IOException {
        // logger.error("服务器发生异常: " + e.getMessage());
        // for (StackTraceElement element : e.getStackTrace()) {
        //     logger.error(element.toString());
        // }
        //
        // /**
        //  * 判断是同步异常，还是异步异常
        //  * 同步异常 返回错误页面
        //  * 异步异常 返回json字符串
        //  */
        //
        // String xRequestedWith = request.getHeader("x-requested-with");
        // if ("XMLHttpRequest".equals(xRequestedWith)) {
        //     response.setContentType("application/plain;charset=utf-8");
        //     PrintWriter writer = response.getWriter();
        //     writer.write(CommunityUtil.getJSONString(1, "服务器异常!"));
        // } else {
        //     response.sendRedirect(request.getContextPath() + "/error");
        // }
    }
}
